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C# How do i find the last UNIQUE letter inside a string, and get its index?
| Author | Votes | Δ |
|---|---|---|
| Sergey Kalinichenko | 3 | +0.70 |
| WilliamW | 0 | -1.02 |
| Jawad | 0 | -0.57 |
Last visited: May 14, 2020, 3:16:00 AM